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M. G ALLY. MECHANICAL MUSICAL INSTRUMENT.

No. 380,716. Patented Apr. 10, 1888.

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UNITED STATES PATENT OFFICEQ MERRITT eALLroE NEW YORK, N. Y.

MECHANICAL MUSICAL lNSTRUMENT.

SPECIFICATION forming part of Letters Patent No. 380,716, dated April10. 1888.

Application filed August 2, 1887.

To all whom it may concern:

Be it known that I, MERRITT GALLY, residing at NewYork city, in thecounty of New York and State of New York, have invented certain new anduseful Improvements in lVIusical Instruments, of which the following isa specification, reference being had therein to the accompanyingdrawing.

The accompanying drawing is a transverse sectional view of anorgan-action, showing the several parts of the invention in operatingposition. v The invention relates especially to musical instrumentswhich are operated mechanically, or mechanically and manually, but inpart is also applicable to instruments which are operated only manually.

In the organ as shown the valves of the sounding devices are operated bypneumatic motors which are in many respects similar to those shown insome of my former patents. I will here describe the peculiar features inthis case of the construction and combination of the pneumatic motorsand their pneumatic vent-valves as forming a part of the presentinvention.

In my Patent No. 214,121, April 8, 1879, I show and describe a pneumaticmotor for operating a sounding device fora musical instrument, whichpneumatic motor is operated by means of a primary pneumatic valve, whichprimary pneumatic and its valve are situated in a cavity forming a partof the wind-chest of the instrument, and the pneumatic motor which thevalve serves alternately to connect with the exhaust of the windchestand the external air is situated externally as to the wind-chest. In myPatent No. 346,152, July 27, 1886, I show and describe aprimarypneumatic within the wind-chest, which operates a pneumatic motor alsoplaced within the windchest, an intervening valve acting in connectionwith the primary pneumatic, serving to open and close the port leadingfrom the external atmosphere to the pneumatic motor.

In the present case I show the pneumatic motor 1? and the primarypneumatic In both placed within the wind-chest, the primary pneumaticserving to operate a valve which alternately opens and closes the portof entry of the external atmosphere to the pneumatic Serial No. 245,990.(No model.)

motor and the port leading from the pneumatic motor to the wind-chest.

The windchest A AA (showu in the drawing) is composed of threecompartments freely communicating with one another. This form of windchest in compartments is not necessary to the construction or operationof the pneumatic action, and I make the wind-chest either withcompartments or with a single cavity to accommodate the arrangement ofthe other parts of the organ, as the case may require.

The grooved board B has inclosed grooves e, which lead from thepneumatic motors P, and serve for alternately connecting the interior ofthe pneumatic motor with the external atmosphere and the wind chest A AA through the ports of the valves or double valve a h. The valve aconnects groove e with the external atmosphere, and the valve h connectsgroove 6 with the wind-chest. The two valves a and h being connectedtogether,one is open when the other is closed; The valve h, or aprojection from it, rests on a thin flexible diaphragm, which,with asmall cavity at the side of the diaphragm opposite the valve, forms asensitive pneumatic for opening the valve. This valve-pneumatic connectswith the trackerrange T through the leader-tube N, and with the manualthrough a branch leader-tube, Z. The chamber of the valve-pneumaticconnects through avery small opening, t, with the windchest A. Thealternate opening and closing to the external atmosphere of theleader-tube N by means of the perforated music-sheet y or the manual keyF alternately connects groove 6 with the external atmosphere and thewindchest A by means of the action of the pneumatic valve a h. Insteadof two valve-but tons, a and h, one for each side of the grooved board Band connected together by means of the stem, as shown, a single buttonmay be used, placed in a cavity in the grooved board, the interior portsbeing the seats for the valve, the groove 6 leading into the cavityoccupied by the valve.

It will be seen that with the construction I IOO and powerfulgor agreater number of pneumatics P can all be connected with the groove 6and simultaneously operated thereby, as shown in the drawing.

The take-up roller M for the music-sheet y is shown connected by a beltto the wind-motor D, the valve for operating and controlling thewind-motor being at X.

In order that the feet may be rested from pumping the bellows of theinstrument while the music-sheet is being rewound, I use a hand-crankmotor for rewinding the sheet, as shown in the drawing. On the shaft Kof the hand-crank V is one of the members of abeveled gear, f. The shaftK has a lateral movement, which allows the beveled wheelsff to be thrownin and out of connection. The beveled wheel f drives the music-spool forre windingthe music. Thegearsaredisconnected when the sheet is beingwound by the windmotor on the take-up roller M.

In order to be able to operate the takenp roller at any time that thewind-motor may be deranged or out of repair, or to play passages out ofregular time, to which the windmotor is not perfectly adapted, I place abeveled wheel, at, on shaft K, which can be connected bya lateralmovement of the shaft with beveled wheel a and the take-up roller M,driven by hand-crank V.

In order that the music-sheet may be wound or rewound while theair-tension remains in the instrument without producing any sound fromthe sounding device, I use a mechanism for closing all of the stops ofthe instrument by means of an auxiliary draw'knob, 15, connected withthe stop-rods Z m, or any number of the draw-knobs, as 0'. On each ofthe stop-draws is a projection, 0 A pivoted swinging bar, a is operatedby means of draw-k nob t through lever c.

It will be seen that any number of stopknobs '0, which may be drawn toopen their stops,will all be forced back into closed position by drawingthe single draw-knob t. This secures the instantaneous closing of allthe stops of the instrument when desired.

\Vhat I claim as my invention is- 1. In a mechanical musical instrumentwhich is operated by means of a perforated or slotted music-sheet, thecombination, with the music-sheet,of a take-up roller and a windmotortherefor and a hand-crank motor for rewinding the sheets.

2. The combination, with the music-sheet, the take-up roller,and thewind-motor therefor, of'a handcrank motor adapted to be used in lieu ofthe wind-motors when desirable, substantially as specified.

3. The combination, with the stop-rods, of the swinging bar a, theoperating-lever, and the supplemental draw-stop t, substantially asspecified.

In testimony whereof I affix my signature in presence of two witnesses.

M ERRITI GALLY.

. \Vitnesses:

D. B. GALLY, O. L. SPENGLER.

